最多可做多少面小三角旗
- 时间:2020-05-16 11:04:24
- 分类:数学世界
- 阅读:161 次
数学题:一块长26dm,宽20dm的长方形红布,裁剪成直角边都是2dm的等腰直角三角形红旗,最多可做多少面小三角旗?
数学题解答:
Melody解答:
大长方形:26*20=520平方分米
小正方形:2*2=4平方分米;
520÷4=130(个);
每一个小正方形都可以分成两个边长为2分米的等边直角三角形:
130*2=260(个)

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